[Beowulf] 'dual' Quad solution from Tyan

Thank you all for your reply's.
1. The system will be used for CFD intensive calculation, using comercial
and in the house codes, MPI flavor;
2. The cluster I've thought to build initially would be:
* 8 nodes (including master), with dual motherboards (2 Opteron CPUs,
single core)
* 16 Opteron 2.4GHz;
* 4 GB per node (32 GB total);
* 1 80 Gb disc (SATA II) per node for system and scratch space;
* 2 80 Gb disc (SATA II) for system on master, on RAID 1;
* 3 500 Gb disc (SATA II) for storage, home;
* 2 Gigabit switch, one for MPI, another for system and NFS;
* Motherboard is the Tyan S2882G3NR-D;
3. I thought that the lantency in this VX50 would be far less than in
the Gigabit network;
4. The solution for cluster vs. VX50 is around less 3500 euro for
the VX50;
5. I thought also that the requirements in HVAC would be less for the
VX50;
6. I'm aware and thinking that this technology is new and can be a
single-point of failure, regarding the cluster option;
7. Why 2 single core are better than a dual core? because of sharing
resources?
thanks for your knowledge sharing,
Ricardo Reis
"Non Serviam"
n.p.: http://radio.ist.utl.pt
n.r.: http://atumtenorio.blogspot.com
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